Dual 5AR4s in Preamp

[duncan2]

I am equipped for my 10 rectifier tube preamp! 😀
They won't handle much current but arcing shouldn't be a problem.

Now that made me laugh !

Thanks mike567.

 

[mike567]

Possible lay out for power supply.]
10 1B3's , 19 pound tektronix transformer, maybe 10h 300ma choke and 1000mfd of film caps! should be enough for a single 12ax7.

 

[duncan2]

Possible lay out for power supply.]
10 1B3's , 19 pound tektronix transformer, maybe 10h 300ma choke and 1000mfd of film caps! should be enough for a single 12ax7.

Keep them coming mike567 your curing my depression .
I know the transformers you are talking about ---massive.


Just the job for a Saturday in locked down UK.

 

[Burnedfingers]

Possible lay out for power supply.]
10 1B3's , 19 pound tektronix transformer, maybe 10h 300ma choke and 1000mfd of film caps! should be enough for a single 12ax7.

Take that times 2. One transformer per channel. two rectifiers, massive choke and filter caps and you have the makings of a decent preamp once you ditch the 12AX7 in favor of a decent tube.

 

[TonyTecson]

damn, i just started a design using 4 x 5U4's to power a 2 tube 12au7 ccda preamp.....

this chinese amplifier with 12ax7 cathode follower to supply +-6 volts to that stage used 2 5V4 rectifiers, and that is becuase the cathode followers used dual rails....

mind you this amp sold like hotcakes in manila....